Possibility Storm
1) Have Possibility Storm in play
2) Cast an the "Sorcery" portion of an adventure spell
Expected result as per rules) the cast adventure spell is exiled, then you exile cards from the top of your library until you exile a sorcery spell you may cast that spell without paying its mana cost. Then put all cards exiled with Possibility Storm on the bottom of his or her library in a random order.
Result as of latest Patch) the same process as above but instead of only exiling cards until a Sorcery is exiled, It exiles cards until either a sorcery OR A CREATURE is exiled.
As per ruling 715.3b "While on the stack as an Adventure, the spell has only its alternative characteristics." when cast as a sorcery the card does not have the type creature and should not consider creatures exiled as part of Possibility Storm's effect to share a type with it.
This bug also occurs with the instant portion of adventure spells.
This now makes decks built around the interaction between Adventures and Possibility Storm completely unplayable.
This error has been in MTGO for a very long time. It would be nice to receive an update as it makes an entire archetype unplayable, and I invested money into the cards to play on this platform, and no longer can.

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Snail#02083 commented
Its been so long, still no fix..